# Dynamic configuration parameters

**URL:** <https://discuss.elastic.co/t/dynamic-configuration-parameters/147188>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [September 4, 2018, 10:21am UTC](https://discuss.elastic.co/t/dynamic-configuration-parameters/147188 "2018-09-04T10:21:42Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Raghuveer\_SJ](https://avatars.discourse-cdn.com/v4/letter/r/2bfe46/32.png) [@Raghuveer\_SJ](https://discuss.elastic.co/u/Raghuveer_SJ)\
**Post date:** [September 4, 2018, 10:21am UTC](https://discuss.elastic.co/t/dynamic-configuration-parameters/147188/1 "2018-09-04T10:21:42Z")

</div>

In filebeat configuration I would like to have dynamic variable like :

```
filebeat.inputs:

- type: ${some.type}
  enabled: true
  paths:
    - ${some.thing.like.variable}
  multiline.pattern: '^[[:space:]]+(at|\.{3})\b|^Caused by:'
  multiline.negate: false
  multiline.match: after

```

Is it possible to have like this ?

---

<div class="post-metadata">

**Author:** ![kvch](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kvch/32/72058_2.png) [@kvch](https://discuss.elastic.co/u/kvch)\
**Post date:** [September 4, 2018, 10:24am UTC](https://discuss.elastic.co/t/dynamic-configuration-parameters/147188/2 "2018-09-04T10:24:50Z")

</div>

It is possible. Just make sure that the variables you are referencing can be resolved.

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<div class="post-metadata">

**Author:** ![Raghuveer\_SJ](https://avatars.discourse-cdn.com/v4/letter/r/2bfe46/32.png) [@Raghuveer\_SJ](https://discuss.elastic.co/u/Raghuveer_SJ)\
**Post date:** [September 4, 2018, 10:26am UTC](https://discuss.elastic.co/t/dynamic-configuration-parameters/147188/3 "2018-09-04T10:26:43Z")

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So that was my next question, is there a way to read form a configuration file ? or the variables should be preloaded in ENV ?

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<div class="post-metadata">

**Author:** ![kvch](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kvch/32/72058_2.png) [@kvch](https://discuss.elastic.co/u/kvch)\
**Post date:** [September 4, 2018, 10:46am UTC](https://discuss.elastic.co/t/dynamic-configuration-parameters/147188/4 "2018-09-04T10:46:23Z")

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Environment variables can be used in the config. See more: [https://www.elastic.co/guide/en/beats/filebeat/current/using-environ-vars.html](https://www.elastic.co/guide/en/beats/filebeat/current/using-environ-vars.html)

It is also possible to reference objects in the configuration.  
For example ES hosts in the the following config object can be referenced as `${output.elasticsearch.hosts}`:

```auto
output.elasticsearch:
  hosts: ["my-es:myport"]

```

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<div class="post-metadata">

**Author:** ![Raghuveer\_SJ](https://avatars.discourse-cdn.com/v4/letter/r/2bfe46/32.png) [@Raghuveer\_SJ](https://discuss.elastic.co/u/Raghuveer_SJ)\
**Post date:** [September 4, 2018, 11:04am UTC](https://discuss.elastic.co/t/dynamic-configuration-parameters/147188/5 "2018-09-04T11:04:43Z")

</div>

Can you answer [Multiline parsing patterns](https://discuss.elastic.co/t/multiline-parsing-patterns/147171), thanks

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 2, 2018, 11:04am UTC](https://discuss.elastic.co/t/dynamic-configuration-parameters/147188/6 "2018-10-02T11:04:43Z")

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